Zhang Jiliu: Application of LED Light Color Online Measurement and Control System

On June 10, 2010, the “6th China LED Industry Theme Summit Forum” hosted by Gaogong LED was successfully held at the Guangzhou China Import and Export Fair. The conference was held concurrently with the 2010 Guangzhou International Lighting Exhibition. The topics covered include the talent, market, investment, technology, EMC model and other hot topics in the current LED industry.

Zhang Jiliu, Chairman of Zhongwei Optoelectronics

Mr. Tang Guoqing, General Manager of CREE China Market, Zhang Jiliu, Chairman of Zhongwei Optoelectronics, Gong Weibin, General Manager of Ruifeng Optoelectronics, He Wenming, Chairman of Zhongke Wanbang, Xiong Kecang, Chairman of Lelei Optoelectronics, and Zhang Hui, Deputy General Manager of Guanyu Technology Co., Ltd. Li Yimin, vice president of TCL Lighting, Ye Rongnan, professor-level senior engineer of Fujian Optoelectronics Industry Association, Deng Hao, lawyer of Cubic Law Firm, Zhang Ziqi, general manager of Sunda Baili, Chen Bin, general manager of Zhonglong Transportation, and LED Industry Research Institute (GLII) Dr. Zhang Xiaofei and other experts made a wonderful theme report in the forum.

The conference attracted 600 spectators. They are senior managers, technical experts, and members of investment institutions and government agencies from foreign lighting companies.

“With the continuous improvement of LED technology, LED efficiency and brightness continue to increase, LED has gradually been applied to various types of light sources, such as backlights, landscape lights, lights, street lights, indoor and outdoor displays, and even now into home lighting. The development of LED has become more and more extensive. The new generation of lighting sources has penetrated into an irreplaceable position, and the quality control of LEDs and the visual requirements for people are getting higher and higher.” Zhang Jiliu, Chairman of Zhongwei Optoelectronics Co., Ltd. If so.

Zhang Jiliu believes that since the composition of LEDs is a single point source electronic component, when the LED needs to be used as an array display, a screen component, or an illumination source, the human visual perception demands color and brightness, whether it is color or brightness. Unevenness can give people an uncomfortable feeling. The quality control of LEDs and the visual requirements for people are getting higher and higher. The current application requirements for LEDs are mainly achieved by controlling and sorting colors and brightness. The sorting solution can be implemented from the following schemes: chip-based test sorting; test control and sorting in the packaging process; and uniform test sorting of the lamps.